KRK ERGO manual

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2 1. I I n n t t r r o o d d u u c c t t i i o o n n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 1.1 The i dea behind ER GO ......................[...]

3 Thank yo u f or pur chasing the ERGO Room Cor r ection Sy stem . W e appreciate your t rust in us. ERGO ( E E nhanced R R o om G G eometr y O O ptimiz ation) is a n exc iting pr o duct that enhances the p erformanc e on a ny loudsp eaker/ moni tor system by digi tally corr e cti ng your room’s ac oustic pr o blem s. A few of ERGO’s bells an d[...]

4 1 1 . . 3 3 H H o o w w d d o o e e s s E E R R G G O O w w o o r r k k ? ? ERGO tak es a ster eo aud i o str eam fr om the analog or digital (SPDIF or F ire Wir e) domain and proce sses it though a 9 6 kHz room c orr e ction a lgorithm. All i nc omi ng ana log aud io is sampl ed at 9 6 kHz , w hile incomin g digit al au dio is sampl e r ate con [...]

5 1 1 . . 5 5 S S y y s s t t e e m m R R e e q q u u i i r r e e m m e e n n t t s s A co mput er is r equired f or perfo rming r oom measur ement and analy sis. Minim um requir ed compu ter spec ifica tions ar e: Mac® 800 MHz (or fast er ) pr ocessor • 25 6 MB RAM • 6-p in F ire W ire port (o r 4 -pin F ir e Wir e port using 4-6 pi n a dapt [...]

6 “T he ideal re sponse is fla t an d wi thout r eflec tions ” is a stateme nt yo u’ll hear if you ask people what the perfect sound wo uld be fo r them . Ho we ver , for var iou s r easons, it is not ER GO’s goal to do this. Instead , ERGO is foc used on making the room soun d r ight , re flectio ns and all. 1 1 . . 6 6 . . 3 3 S S o o , ,[...]

7 2 2 . . E E R R G G O O P P a a n n e e l l s s a a n n d d C C o o n n n n e e c c t t i i o o n n s s 2 2 . . 1 1 B B a a c c k k P P a a n n e e l l a a n n d d C C o o n n n n e e c c t t i i o o n n s s In th e Bac k panel (F igure 2), ERGO in cludes: • On/Off S witch • P ow er Input • F ire Wir e P orts • SPDIF IN • Cal Mic In put[...]

8 • Y ou have a complex or well -estab lis hed Fire Wire con figuration on your computer a nd don ’ t want to inte rfer e with it . • Y o u ar e us ing an analo g conso le an d mix “ o utsi de of the bo x. ” C C a a l l i i b b r r a a t t e e b b u u t t t t o o n n Y ou need to press this button to pr o ceed with the Calibration pr oces[...]

9 F F o o c c u u s s / / G G l l o o b b a a l l ERGO ha s t wo mod e s of oper ation; F ocu s and Global . In Foc us mode all of ERGO's pr ocessing pow er is cor rec ting the focus ( sweet spot or mi xing ) p osit ion, correcting ti me and fr equen cy domain pr oblems. Use this mode when mix ing y our tr acks. In Glob al mode , ERGO's p[...]

10 It’s time to get r e ady to set up your m ix in g envir on ment. This consists of 3 ea sy st eps: 1) Se t up y our m onit ors - yo u may hav e alr ead y put t hem ex act l y whe re you wan t them , but please r ead the next section as yo u ma y learn somethin g abou t monito r positi oning that w ill ensur e yo u get maxim um enjo yment o ut o[...]

T T w w o o - - C C h h a a n n n n e e l l S S e e t t U U p p • Near - F ield Con figuration – I n a c ontrol room situa tion, the moni tors are often ti mes plac ed o n the meter bridge or i n a close -field liste nin g posi tion. Ini tial placem ent star ts by meas ur ing out a s imple eq uilat er al tri angle (all thr ee sid es equal in le[...]

12 A A d d d d i i n n g g a a S S u u b b w w o o o o f f e e r r Begin by determining the best location for your subwoofer . I f possible , the optimum se t up wo uld r eflect tha t show n in F igur e 3.2 ; how ev er , this set up may not be pr actical , or possible , in your r o om. Once you h ave set up y ou r moni tors, liste n to program mate[...]

13 S S e e t t t t i i n n g g U U p p a a 2 2 . . 1 1 S S y y s s t t e e m m w w i i t t h h T T w w o o F F u u l l l l R R a a n n g g e e M M o o n n i i t t o o r r s s (F igu r e 3.4) C C o o n n f f i i g g u u r r a a t t i i o o n n s s Ther e are sever a l pos sibl e ERG O co nfigurations. Thes e al l depen d on how y ou wan t t o use ER[...]

14 U U s s i i n n g g A A n n a a l l o o g g ( ( L L & & R R ) ) a a n n d d D D i i g g i i t t a a l l ( ( S S P P D D I I F F ) ) I I n n p p u u t t s s Her e are a fe w tips to keep in mind whe n dealing with A nalog and Dig ita l Input s with ERGO. When using E RGO as a sound card conn ecte d via Fir e Wire to your c omputer , t he [...]

15 R oomP erf ect™ can deri ve inf orma tion about: • R oom acousti c pro perties and mode s (peaks and dips in the r oom) • P ow er r esponse thr oughou t the r oom • Lou dspeaker dir ecti vity • Hi gh fr equen cy r oll-off • Char acter istics o f low f req uency r oll-off F ro m the acquir ed measur ements, R oomP erf ect™ proce sse[...]

16 This section d escribes ERGO’s Co ntrol P an el includi ng conf igura ble parame ters and s ys tem infor mation . (F igur e 4) N N o o t t e e Re mem ber that ERGO Contr ol P anel is av ailable for Win dow s only . Go to St art > Progr ams > KRK ERGO and cli ck E E R R G G O O C C o o n n t t r r o o l l P P a a n n e e l l to open it . [...]

17 ERGO C al is yo ur fr iend . Get to kno w , and lo ve it . Double click E RGO Cal icon (loc ated as s hortcut in your deskto p or within the Applicati ons f older ) . Once y ou initiali ze ERGO C al, the f ollow ing scr een appear s (F igure 5 ) . The n, ERGO is r eady t o measure y our r oom (F igur e 5.1) All of the magic starts fr om her e. E[...]

18 5 5 . . 2 2 C C a a l l i i b b r r a a t t i i o o n n S S p p e e a a k k e e r r M M o o d d e e T his win do w wil l inf or m yo u of wh ic h , if an y , butt ons ar e se lec ted on ERGO—A, B/Sub , both , or neither and will instru ct yo u to se lect the ap pr opr ia te bu tton . Cli ck E E n n t t e e r r to pr oceed . (F igur e 5.4 ) S S[...]

19 5 5 . . 2 2 . . 1 1 E E n n a a b b l l i i n n g g C C a a l l i i b b r r a a t t i i o o n n If the Cali brate but ton is Of f , check ERGO ’s Back pan el and press it ( F ig ure 5.8) . The Calibrate LED l ocat ed on the Fr ont panel w ill lit (green). If the Calibr ate button is alrea dy On , j ust c lick En ter . (F igur e 5.9) 5 5 . . E [...]

20 In the secon d adjustme nt , the v olume is sy stem depe nden t. 5 5 . . 2 2 . . 3 3 F F o o c c u u s s P P o o s s i i t t i i o o n n M M e e a a s s u u r r e e m m e e n n t t Th e f ollow ing windo w prepar es yo u to tak e your F ocu s P osition Measur ement . Bef or e to cli ck Ente r , read the instru ctions belo w; • Mak e sure that [...]

21 One Mississipp i, t wo Mis sissippi ... (Fi gure 5 .14) W ell, how d id t hin gs go? I f the level d id not fall withi n an acce ptable parameter , ERGO will noti fy y ou. This doesn’t necessar ily mean that something is wr ong . A possib ilit y is that y our speak ers do not pr oduce a high enou gh SPL to r egister , but the calibr atio n can[...]

22 If the Focus m easu rement was O k, E RGO will in struct you to pl ace y our meas ur emen t mic i n Ro om P osi tion 1, the n cli ck E E n n t t e e r r . ( F igur e 5.18) If ther e wa s a pro blem with the measur ement , E RGO will dis- pla y the infor mation an d instructi ons for th e next ste p. 5 5 . . 2 2 . . 4 4 R R o o o o m m P P o o s [...]

23 5 5 . . 2 2 . . 5 5 R R o o o o m m C C o o r r r r e e c c t t i i o o n n Th e r oom corr ecti on scor e is a me asur e of ho w muc h p roce ssing is b eing p erformed i n the room correction filters. T o some e xtent , this r eflec ts how audible the corr ection is. How ev er , the same amount of pr o cess ing c an sound v er y d if fer e nt [...]

24 The n, cli ck Y Y E E S S to st o re y our measur ements (F igur e 5.2 3) . If yo u choose to contin ue with mor e measur ements , select YE S and follow ERGO ’s pr omp ts. Some r oom s take many meas urements ; som e ca n reach this level with o nly 3 measur ements. E RGO will not let you store a room corr ection until R oom Kno wledge is at [...]

25 T his wil l tak e yo u to ER GO Cal’ s init ial sc r een ...and y ou ’r e don e. (F igur e 5.2 6) 5 5 . . E E R R G G O O C C a a l l i i b b r r a a t t i i o o n n S S o o f f t t w w a a r r e e ( ( E E R R G G O O C C a a l l ) ) F igure 5 .26[...]

26 The follow ing a r e t ips that you probably already know , but it w ould be a good idea to r ead them as a r ef re sher . Y o u know t he old adag e...better s afe than sor ry . • T urn Off your spea ker s befor e turni ng Of f ERGO Other wise, you m ay e x perience a pop as ERGO’ s power r ails come cr ashing do wn to z ero v olts! • Alw[...]

27 • What i f you don ’ t have S PDI F O ut? No problema, am igo. Just plug th e output s that a re curr e ntly conn ecte d to your moni tors into E RGO’ s L INE In s, then plug your mon itors into the “ A ” speakers. V oi la! That’ s i t! ERGO ’s high-perf orm ance A/D con vert ers will me ticul ousl y transf orm yo ur signal into be[...]

28 C C o o n n f f i i g g u u r r i i n n g g E E R R G G O O I I n n p p u u t t s s a a n n d d O O u u t t p p u u t t s s i i n n Y Y o o u u r r D D A A W W S S y y s s t t e e m m ERGO inpu ts and outputs will appear as inputs and outputs in your D A W system . Set up is describe d later in thi s ma nual. Depending on your cho sen applicati [...]

29 Belo w you w ill find inf ormati on regar ding integr ation of ER GO into v ari ous D A W s. 8 8 . . 1 1 P P r r o o T T o o o o l l s s ® ® If y our Pr o T ools har dw are p ro vi des a SPDIF output , ensur e that SPDIF is enabl ed in your Pro T ools hard war e confi gurati on set up . P lease r ead y our Pro T ools manual f or mor e details [...]

30 8 8 . . 3 3 A A b b l l e e t t o o n n L L i i v v e e ™ ™ If this is a n ew in stal lation an d E RGO is your on ly Fir e Wire inte rface , set Ablet on fo r AS IO mode by going into t he Optio ns menu in t he toolbar and selectin g Pr efer ences . Wh en the scr een pop- up w ind ow appe ars , selec t the Dr iv er T y pe pull-do wn and ch [...]

31 If yo u’r e hav ing trou ble with ER GO , check out t hese tips. P P o o w w e e r r L L E E D D / / k k n n o o b b L L E E D D s s d d o o n n o o t t i i l l l l u u m m i i n n a a t t e e w w h h e e n n p p o o w w e e r r s s w w i i t t c c h h i i s s t t u u r r n n e e d d o o n n . . • F ire Wir e port is not su pply ing enough p[...]

32 T T h h e e C C a a l l i i b b r r a a t t i i o o n n M M i i c c l l e e v v e e l l i i s s n n o o t t l l o o u u d d e e n n o o u u g g h h . . • T u rn up the volume on your speaker s. The speake rs need to e xc ite your r oom in or der f or ERGO to measur e it acc urate ly . • T urn up the volume on ERGO. The volume co ntrol sho ul[...]

33 W W h h i i l l e e u u s s i i n n g g E E R R G G O O i i n n W W D D M M M M o o d d e e , , I I ’ ’ m m n n o o t t a a b b l l e e t t o o s s e e l l e e c c t t a a b b u u f f f f e e r r s s i i z z e e v v a a l l u u e e f f r r o o m m t t h h e e C C o o n n t t r r o o l l P P a a n n e e l l . . • Th at is the exp ected beha[...]

34 P P r r o o c c e e s s s s i i n n g g - Proce ssing 400 MHz Blac kfin DSP - R oomP erf ect™ Algor ithm Sample R ate 9 6 kHz - R oom Corr ecti on Fr equen cies 20-500 Hz A A u u d d i i o o S S p p e e c c - Audi o Spec A/B Speak er Select and C ontr ol Ste reo A udio-In - SPDIF In (3 2 kHz -9 6 kHz) - 118 dB SNR and Dy namic R ange - THD+N 0[...]

35 A A / / D D - sh ort fo r Anal og to Digital Con ve rsion . T he con ve rsion of ana log data or information into digi tal or binary for m (See binary). A A S S I I O O – A udio Str e am Input Output. ASIO , developed by Steinberg, is a cross-plat form , mul ti- chan nel au dio t ransfer pr otocol . It allow s softw are to hav e access to the [...]

36 S S a a m m p p l l i i n n g g F F r r e e q q u u e e n n c c y y - The num ber of d igita l snaps hots or sample s taken of an ana log audio sig nal in one sec ond nec essar y to produce a d igita l i nterpr e tation of the original signa l. The indust ry sta ndard s ampl ing frequency for CD-quality a udio is 4 4.1 kHz . Als o r efer red to [...]

Cop yri ght © 2008 by KRK S yste ms, LL C ERGO is a tr ademark o f the Stant on Gr oup . Roo mP erfect is a tr ademark of L yngdorf A udio All othe r trademar ks are pr operty of the ir respecti ve o wners, w ho are in no w ay aff iliated w ith KRK Sy stems or KRK pr oducts. All inf orma tion included in this U ser Manual is subj ect to change w i[...]